Insulating electrical wires



(No Model.) u

G. A. GAGE.'

INSULATING ELECTRICAL WIRES. No. 265.594. Patented Oct. 10, 1882.

N` PETERS Pham numana-.mz wdshmgmn. D, c

UNITED STATES PATENT CEEICE.

GEORGE A. GAGE, OF CHICAGO, ILLINOIS.

INSULATING ELECTRICAL WIRES.

SPECIFICATION forming part of Letters Patent No. 265,594, dated October 10, 1882.

Application filed December 5, 1881.

To all whom it may concern:

Be it known that I, GEO. A. GAGE, of Chicago, in the county of Cook and State or" Illinois, have invented certain new and useful Improvements in Insulating Underground Electrical Wires, of which the following is a specification. A

The nature of my invention consists in laying electrical wires in a non-conducting material under ground, as more fully set forth in the annexed speciiication and drawings, in which- Figure l is a cross-section of box or pipe A, showing end of wires B, spaces between wires being iilled with myinsulating material. Fig. 2 is a longitudinal section of box or pipe A for holding` wires B and insulating material.

In any suitable box or pipe, A, of any desirable shape or material, I tirst lay a row of wires longitudinal with the sides of box or pipe A and across the box or pipe A, as shown in Fig. 1. I then run on the wires silicate of soda, or silicate ot' soda and ground glass, ot' sutlicient depth to entirely cover the wires. After allowing it to harden, I again place a row ot' wires on top ot' the insulating material and again iill, asbefore, with the insulating material, continuing this operation until all the wires are laid. rIbis makes a solid nonconducting concrete with the wires incased.

It desired, for the purpose ot more easy repairing, a thin piece of wood or other suitable material can be laid in between the several layers ot' wires, so as to keep the layers of wires separate, being careful to have snt'licient ot' the insulating material between the wires and the piece so putin that the wires cannot come in contact with it. Wires laid iu this manner are entirely protected from dampness and cannot rust, corrode, or wear out, as is the case when exposed to the weather.

(No model) It' desired, the wires can first be wound with a covering ot cotton or other suitable material to allow for expansion or contraction.

The shape and material ofthe box or receptacle to hold the wires is immaterial, as they can he put in a pipe or tube and the insulat` ing material can be putin after all the wires are in, or the wiies can be covered with the insulating material before being put into the receptacle.

I am aware that underground telegraphwires have been laid in a trough which is afterward filled with an insulating compound ot" powdered silica, resin or pitch, and linseedoil. I am also aware that a wire has been wrapped, braided, and otherwise covered with asbcstus, and then the asbestus coated with silicate of soda; but such modes ot' insulating wires are not claimed by me.

Having thus described my invention, what I desire to secure by Letters Patent is- 1. The method herein described of laying and insulating underground telegraph-wires, which consists in placing a row otl wires longitudinally in a receptacle, covering such wires with silicate of soda iu a iluid state, permitting the latter to harden, then arranging another row of wires on the hardened insulating material, and covering the same with silicate of soda, all substantially in the manner set forth.

2. An electrical conducting-wire covered with silicate of soda, which is in direct contact with the surface ofthe wire, as and for the purpose described.

GEO. A. GAGE.

In presence of- GHAELEs A. FoLsoM, ELAM L. KNo'r'r. 

